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Behavioral sink" is a term invented by ethologist John B. Calhoun to describe a collapse in behavior that can result from overpopulation. The term and concept derive from a series of over-population experiments Calhoun conducted on Norway rats between 1958 and 1962. [ 1 ]
The Monkey Drug Trials experiment was influenced by preceding research discussing related topics. [2] Six notable research publications may be highlighted: “Factors regulating oral consumption of an opioid (etonitazene) by morphine-addicted rats”; [3] “Experimental morphine addiction: Method for automatic intravenous injections in unrestrained rats.”; [4] ”Morphine self ...
Before the experiment, Albert was given a battery of baseline emotional tests: the infant was exposed, briefly and for the first time, to a white rat, a rabbit, a dog, a monkey, masks (with and without hair), cotton, wool, burning newspapers, and other stimuli. Albert showed no fear of any of these items during the baseline tests.
Tyron's rat chart. Prior to Robert Tryon’s study of selective rat breeding, concluded in 1942, many psychologists believed that environmental, rather than genetic, differences produced individual behavioral variations. Tryon sought to demonstrate that genetic traits often did, in fact, contribute to behavior.
There is a vigorous debate in animal ethics about the difference between animal welfare and the more ambitious agenda of animal rights. Both approaches ask critical questions about human treatment ...
Self-administration of addictive drugs has been studied using humans, [1] non-human primates, [2] mice, [3] invertebrates such as ants, and, most commonly, rats. Self-administration of heroin and cocaine is used to screen drugs for possible effects in reducing drug-taking behavior, especially reinstatement of drug-seeking after extinction ...
The Kerplunk experiment was a stimulus and response experiment conducted on rats [1] and demonstrates the ability to turn voluntary motor responses into a conditioned response. [2] The purpose of the experiment was to get kinaesthetic feedback rather than guidance through external stimuli [ 3 ] through maze learning. [ 2 ]
Many of us genuinely care about the impact we have on the people closest to us, as well as society and the environment as a whole. Your decisions, actions, and spending habits—though just drops ...